@winstrike/next-i18next-koa/dist/es/utils/force-trailing-slash.js

The easiest way to translate your NextJs apps. With Koa support only. Forked from 'next-i18next'.

import { parse } from 'url';
import redirectWithoutCache from './redirect-without-cache';
export default ((req, res, lng) => {
  const {
    pathname,
    search
  } = parse(req.url);
  redirectWithoutCache(res, pathname.replace(`/${lng}`, `/${lng}/`) + (search || ''));
});